i18n header
i18n header improvements
i18n header improvements

- escape header strings by using Generator escape method
- emit nice warning when translation method wasnt found
i18n header test
Modified test so that model object has get- prefix (so looks like a property), and asserts use expected/actual order for nicer output. Also changed Constants to be a real interface so the i18n generator doesn't get grumpy.
Added better escaping support so that quote marks can make it into the @Header annotation
Merge pull request #1 from niloc132/i18n-header

I18n header changes
Merge pull request #4 from bpowder/i18n-header

i18n header